Which of these strategies will eliminate a variable to help you solve the
system of equations to the right? Select all that apply.
A Multiply the first equation by 2 and add it to the second equation.
B Multiply the first equation by -2 and add it to the second equation.
C Multiply the first equation by and add it to the second equation.
D Multiply the second equation by 3 and add it to the first equation.
E Multiply the second equation by and add it to the first equation